operand UK /ˈɒpəɹænd/US /ˈɑpəˌɹænd/ noun1 •A quantity to which an operator is applied (in 3-x, the operands of the subtraction operator are 3 and x).When the microprocessor decodes the JSR opcode, it stores the operand into the TEMP register and pushes the current contents of the PC ($00 0128) onto the stack. — 1992 formsoperands